const person = {
    name:'Bob',
    age:20
};
console.log(person);

let person2:{
    name:string,
    age:number
} = {
    name: 'Tom',
    age:18
};
console.log(person2);

const person3:any = {
    name:'John',
    age:19
};
console.log(person3.nickname);
